Aboout Class II Type B2 biological safety cabinets:

- The B2 type safety cabinet is efficiently filtered and discharged outdoors, requiring the installation of exhaust ducts.

- If there is a possibility of the experimental subject escaping radioactive gases or toxic irritants, please use a B2 type safety cabinet. For example: medical treatment: HIV (AIDS), PCR and tumor drug allocation laboratory; Pharmaceutical: Positive control room.

- If using a B2 type safety cabinet, please ensure that the laboratory has sufficient ventilation, otherwise it will cause the suction wind speed of the safety cabinet to be too low, causing an alarm and seriously reducing its biological safety.